Method and apparatus for correcting the offset induced by field effect transistor photo-conductive effects in a solid state x-ray detector

A medical diagnostic imaging system, comprising:

• a detector for detecting an energy pattern emanating from a patient;
• said detector having an array of discrete collecting elements storing charge representative of an amount of detected energy both from said patient and outside said patient;
• an image acquisition module scanning a charge stored on said collecting elements;
• and
• said image acquisition module scanning said collecting elements during a first pass to obtain data representative of the intrinsic energy characteristic from an unexposed detector and during a second pass to obtain both exposure data representative of an energy pattern from said patient and correction data representative of an energy pattern of said detector from outside said patient.